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A nutrigenomic diet focuses on known interactions between food and inherited genetic conditions. These connections are patricularly important for individuals who suffer certain types of chronic diseases, where avoidance of foods is key to maintaining health. Individuals suffering from Phenylketonuria (PKU) should avoid foods containing high levels of phenylalanine. Examples include most fish, chicken, eggs, milk, cheese, dried beans, nuts and tofu. Galactosemia sufferers should avoid foods with lactose or galactose. Similarly, people with lactose intolerance should avoid all dairy products, or take supplements that allow them to adequately process lactose.
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Genetic variation is a necessary condition of which process?
Genetic variation is one of the conditions required for Natural Selection to occur.
What do stabilization selection and disruptive selection have in common?
They both decrease genetic variation. Stabilizing selection and disruptive selection reduce genetic variation
How does genetic variation support Natural Selection?
Genetic variation in itself does not 'support' natural selection: it is what natural selection acts upon.
What is the difference between purifying selection and positive selection in the process of natural selection?
Purifying selection removes harmful genetic variations, while positive selection promotes beneficial genetic variations in natural selection.
Is Natural selection a source of genetic variation in a population?
No, natural selection works on that genetic variation presented to it.
How is genetic diversity important to the concept of natural selection?
Without genetic diversity, natural selection cannot occur
What are genetic mutation and natural selection?
Together, genetic mutation and natural selection determine in what 'direction' evolution proceeds.
Which of these is necessary for natural selection to occur genetic engeneering genetic variation asexual reproduction or enviormental stability?
Genetic variation is necessary for natural selection to occur. This variation provides the raw material for differential survival and reproduction, which drives the process of natural selection. Without genetic variation, there would be no differences for natural selection to act upon.
What is balancing selection and how does it contribute to genetic diversity in biology?
Balancing selection is a type of natural selection that maintains genetic diversity by preserving different versions of a gene in a population. This occurs when multiple versions of a gene are advantageous in different environments or circumstances, preventing any one version from becoming fixed in the population. As a result, genetic diversity is maintained, allowing for adaptation to changing conditions and increasing the overall fitness of the population.
Which type of selection tends to increase genetic variation?
Natural Selection.
How do stabilizing and disruptive selection differ in terms of their impact on the genetic variation within a population?
Stabilizing selection maintains genetic variation by favoring the average traits, while disruptive selection increases genetic variation by favoring extreme traits.
What do stabilizing selection directional selection have in common?
They both decrease genetic variation .
